Molder&#39;s flask.



Fla. 2,

Patented Sept. 9, 1913.

w W: a. .4 J w@ w F. J. BECKER. MOLDERS FLASK. APPLICATION FILED 11116.24, 1912.

improvement, and

. rBANK J. BECKER, HAMILTON OHIO Morinmvs mask.

Specification of Letters Patent.

Patentedsept't),1913.

' A 'psc'aaa area August 24, 1912'. s'riairio. 716,889.

To allwhomitmay concern: v 3

Be it known that I, FRArIK J. BECKER, a citizen of the United States, residing at Hamilton, Ohio, have invented a new and useful Improvement in Molders Flasks, of wlhch the following is'a specification; the dlass adapted to the use of molding machines or for other suitable purposes, and the objects of my improvement are to provide the flask with a telescoping member and with parallel lever connections for mov ing and maintaining said member in prede termined positions of adjustment in relation to the flask; to provide means for adjusting the flasks to different depths for adapting them to patterns of different thicknesses; to provide means for using the same bottom boards for flasks of different sizes, and to provide simple and durable construction and assemblage of the various parts for securing facility of operation and eiflciency of action. These objects may be attained in the following described manner as illustrated in the accompanying drawings, in which Figure 1 is an isometrical view of one member of a molders flaskembodying my Fig. 2 a transverse vertical section on the line aa of Fig. 1 with parts broken away and supported upon the other member of the flask.

In the drawings, 1 represents the cope frame of a molders flask, 2 the drag frame, 3 the flask pin and 4 the latch lock, allbeing constructed and arranged in the ordinary manner. An extension frame 5 con sisting of 'thin metal is slidably mounted within the drag frame. Similar brackets 6 are removably secured to the flanged edge 7 and on opposite sides of the frame 5 by means of screws 8. Said brackets are each formed with a plurality of lugs 9 and with a lip 11 in frictional engagement with the corresponding metal plate 12 which is secured thereunder on the outside of the frame 2. A hand lever 13 and a cooperating lever 14 pivotally secured thereto at 15 are fulcrumed at 16 and 17 on one side of the frame 2 and engage at their extremities with corresponding lugs 9 on the adjacent brackets 6 as shown on one side in Fig. 2 and similar levers (not shown) are also con nected in like manner to the opposite side of said frame and to similar lugs. Said leinvention relates to molders flasks of the same bottom vers serve to mo eihe frame 5 in an out- I ward direction a predetermined distance and in parallel relation to the frame 2 where it is maintained by the frictional engagement of the lips 11 with the plates 12. The

normal depth of the flask'ma'y be adjusted to suit different patterns by the loosening of brackets 6 by means of screws 8 for the enif gagement of the hand levers with the corresponding different lugs 9 on brackets 6.

In operation, the drag frame maybe placed upon a follow board or upon a match supporting the pattern shown in dotted lines in Fig. 2, and after'being extendedby means of the hand levers and filled with sand, the bottom board 18 may be placed The pressure thereon in the usual manner. of the molding machine exerted on-thebottom board overcomes the friction of the lugs 11 on plates 12 and telescopesthe extension frame within the drag frame and properly compresses the sand therein, After the flask is inverted to rest upon the bottom board the match be removed and the cope frame adjusted in its place. After being filled the usual top board may be placed on the cope frame and forced therein by the machine in the usual manner for compressing its contents. The top board may then be removed to be used repeatedly on the successive molds. The bottom board, however, serves to support the mold on the floor and being of greater area more effectually protects the bottom of the mold.

In the use of the ordinary drag frame with a molding machine the bottom boards as well as the top boards are telescoped therein and must correspond in size with that ofthe flask. For each change in the size of the flask one top board and a large quantity of corresponding bottom boards must be provided. With applicants device boards will serve for flasks of different sizes which effects a saving in the. expense required for large numbers of bottom boards for each flask and the labor of supplying and removing them when the what I claim as my invention and desire to States is 1. A molders flask comprlsmg two frames extensibly and frictionally connected tosecure by Letters Patent of the United gether, and parallel lever connections for moving them in predetermined extensible relation.

2. In a molders flask, the combination of a frame, a vertically extensible member frictionally engaging therewith, and adjustable parallel lever connections for. moving said member in relation to the frame.

3. In a molclers flask, a drag frame, an auxiliary frame telescoped therein, parallel lever connections fulcrumed on the drag frame and adjustably connected tothe auxiliary frame for moving it difi'erent'precletermined distances and in parallel relation tothe drag frame and frictional connections between the frames for maintaining them in relative adjusted positions.

4. A molders flask comprising a frame consisting of telescoping members, frictionally connected together and parallel lever movements adjustably connected thereto for relatively moving the frames through different ranges of adjustments.

FRANK J. BECKER.

Witnesses:

W. E. BECKER, R. S. CARR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. 

